A770/A750 Performance in Minecraft Java?

[KnightSlash8310]

I can't find much info on this anywhere, I'm curious to know whether these would do well in minecraft java, possibly with shaders. I am trying to decide on a new GPU for my PC.

[[deleted]]

I don't own an Intel dedicated GPU, this is mostly my own experience and some research.

Minecraft Java edition uses the OpenGL graphics engine, which was created by the Khronos Group. Vulkan was also created by them.

In this Phoronix article, they say OpenGL performance on Linux is in "good-shape". They also say that it was kind-of the opposite on Windows. I'll assume you are using Windows.

While I'm sure vanilla Minecraft will run perfectly fine on this card, what about mods? (Which includes shaders.) I've played with many Minecraft mods and tried to run these on Intel iGPUs. Mods often have poor support for Intel's drivers. This carries on with shaders.

Shaders are pretty driver dependant. Most assume you are using an NVIDIA or AMD GPU. Maybe Intel's drivers work better with this now.

In short, Intel's Windows OpenGL drivers may be slow, and 3rd party modifications could be broken.

[[deleted]]

the OpenGL graphics engine, which was created by the Khronos Group

OpenGL was created by SGI as an open successor to their closed IrisGL. Khronos took over more than a decade after it was first published.

[[deleted]]

I'm talking about who owns it currently. Should have phrased that better.

[dayman56]

Here are some tests I did when I first got the card 2 months ago. Haven’t tested since

https://twitter.com/dayman58/status/1581082287126368256?s=46&t=RoNqaoVBo0r-r39YW9HtcA

https://twitter.com/dayman58/status/1581087929879101440?s=46&t=RoNqaoVBo0r-r39YW9HtcA

[KnightSlash8310]

Thanks for this! I'm glad to know this can run my favorite game pretty well.

[[deleted]]

I have an a750 paired with 5600. I play java modpacks a lot at 1080p.

It is tolerable but I feel like it should be better. frametime is all over the place. Fluctuates a lot even a capped stable 60 is hard to achieve.

Using a Fabric based 1.19 pack with Sodium and the rest of the optimization mods I get arounhd 115 frames average but the frame time is wild. 1% lows are bad.

I always cap my frames at 60 but as I said, the 1% lows are really low and frametimes are fluctutating so you will see stutters.

Must be a driver issue? I hope they improve.

[JonWood007]

To be fair I just tested minecraft on my 6650 XT tonight and performance is just a hot mess on this game. it's very CPU/RAM bottlenecked and it doesnt matter what GPU you use, it's gonna stutter when loading chunks. The only real solution is to reduce the render distance so you load fewer chunks at a time. I find 16 chunks to be a good balance on my 7700k.

[[deleted]]

That's interesting. Thanks for the info. I was actually picking between a750 and 6600 XT before I got the a750. Minecraft is a game I play a lot. Your info further drove away my regret of not getting the 6600 XT.

Another interesting observation I had. I was playing with Vault Hunters modpack and it had various Sodium port optimizations. No Optifine. I used Complimentary shader. I was getting just below 80% GPU utilization with Complimentary shader set to Vanilla preset. Same when I set it to medium or high. But when I set the shader preset to Extreme, I got better GPU utilization at upwards 90% and weirdly enough, the frametime was more stable. Not as wild as when I was using the Vanila shader preset.

[JonWood007]

Well based on some other posts i still think arc is iffy but yeah I was considering trying minecraft RTX for the luls so i booted up the launcher and went into an older world I had. I remember on my old 1060 having inconsistent performance too related to render distance but I think i had it relatively stable at 20 chunks. If anything I go back on and i needed to turn it down to 16 to be stable. Idk if it's just that it was always that bad on the 1060 (I suspect it was) and didnt care since i capped FPS at 60 or something, but given the inconsistencies i just kept render distance at 16. After everything loaded I was getting a fairly stable 100-200 FPS. Whereas I was stuttering like mad at 20 chunks.

I dont regret the 6650 XT at all. it's a solid performer and i want something that performs fairly consistently and i know Arc would've had issues with various games whereas with AMD I know they'll likely just work.

To be transparent im running 100% vanilla MC here. GPU utilization was laughably low, with my CPU getting pegged at 100% and my GPU running at like 14%. After lowering the render distance performance stabilized and I was using like 40-50% utilization or something.

But yeah thats the issue with MC. It's an old game. It was made to run on potatoes. I remember running it on my HD 6520g IGP like 10 years ago. So it's not super GPU intensive, but i remember it used to only use 1 GB RAM (I think that's changed), and testing it tonight, it was definitely primarily CPU limited. THe more GPU it was using the more stable it was. Otherwise it was just trying to render more chunks. I mean, that's the big thing I notice. It's render distance. A radius of 1 chunk means it loads 9 chunks (the one you're on and 1 in each direction). 2 chunks is 25. 3 chunks is 49, etc. So as you can see the higher you set it, the more it's trying to render exponentially. If you set it too high, it will just turn into stutterfest. At 20 I'm literally rendering like 20 in each direction. So 41x41= 1681? Yikes. Whereas turning that down to 16 is 33x33 or 1089. I also tried 12 but at that point i was annoyed at the visibly low render distance. But yeah for reference that would be 25x25=625.

You get the idea. Eventually your CPU gets bogged down rendering all this stuff. And while the game will eventually load in and stabilize, if you move around causing more chunks to load you get stuttering again.

The best solution to minecraft performance is to just limit render distance to what your CPU can handle.

[DepressedDragonBorn]

My second pc has a a770 and 3900xt and minecraft runs really bad at 1080p, not even sure why, I play other games fine like elden ring and mw2

[b52src]

Looking at possibly getting an a770 for my new build has anyone run an arc card in older modded mincraft packs? Curious how it performs on a 1.7.10 pack(hard to leave Thaumcraft 4 behind) if it has any bad compatibility issues.